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Handout
The Math League

The Math League: Symmetric Figure

For Students 3rd - 5th Standards
This tutorial features several examples of symmetric figures to explain how the line of symmetry works.
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Activity
Maths Challenge

Maths challenge.net: Lines of Symmetry

For Students 9th - 10th Standards
A "one star" geometry problem that requires finding the visual pattern and applying logic with pattern recognition to find the lines of reflective symmetry.
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Handout
Other

Ic Teachers: Line or Reflective Symmetry

For Students 3rd - 8th Standards
This website will provide you with a quick review of line or reflective symmetry. It also has questions and answers to help you understand line/reflective symmetry.
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Activity
Houghton Mifflin Harcourt

Houghton Mifflin Harcourt: Saxon Activity Center Real World Investigation: Symmetry Around Us [Pdf]

For Students 3rd - 8th
Use this internet lesson to explore different types of symmetry in nature. Learners examine line symmetry, rotational symmetry, and bilateral symmetry. An integrated math, language art, and art lesson. Acrobat Reader required.
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Graphic
University of Cambridge

University of Cambridge: Nrich: A Cartesian Puzzle

For Students 3rd - 8th Standards
This one page website lets you practice plotting points on the coordinate grid. See if you can find the missing coordinates to complete the shapes. When you are finished the solutions are only a click away.
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Activity
University of Cambridge

University of Cambridge: Nrich: Symmetry Challenge

For Students Pre-K - 1st Standards
Sharpen your logic, symmetry, and pattern recognition skills while working on this challenge. Solution included.
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Activity
University of Cambridge

University of Cambridge: Nrich: Happy Halving

For Students 1st - 2nd
On this one page website expand your logic, symmetry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.
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Handout
University of Georgia

University of Georgia: Inter Math: Line Symmetry

For Students 9th - 10th
This site gives a description of line symmetry along with a visual representation. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving line symmetry...
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Handout
Homeschool Math

Homeschool Math: Line Symmetry

For Students 3rd - 4th Standards
Geometry lesson on line symmetry with practice exercises.
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Activity
Scholastic

Scholastic: Symmetry Surprise

For Teachers Pre-K - 1st
A fun fingerpaint activity that teaches about the concept of symmetry.
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Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Using Symmetry to Create a Community Quilt

For Teachers 9th - 10th
This site provides a hands-on lesson plan to make a quilt using symmetry.